In the scene where they land first and they are all running back into the plane and are going to take off. Cooper runs in front of the plane saying "please stop" etc.. but when the Spinosaur and the plane collide Coopers blood splatters on the wind-screen, then as they are falling to the floor through the trees, the Blood magically vanishes!
I think the Spinosaurus had a couple of problems with it. This instance and also, when the gang finally meets up and the kid says "I heard your stupid satellite phone" and they realize that it's in the dino they all run. Grant and the kid make it through that little hold just as the dino's snout pushes through. O.K., here's the "slip-up".... The Spinosaurus finally breaks through the SOLID STEEL FENCE and starts running after them again. They close the WOODEN doors and the dino can't break through..?? I say, if it's strong enough to break through a solid steel fence, it could turn the P.O.S. wood into powder!!